Hello, In the chapter 2 ( A quick tour of Pharo ) of this book :
https://github.com/SquareBracketAssociates/UpdatedPharoByExample we can read : http://ramix.org/pharo/UpdatePBE/TheSystemBrowser.png When I "do it" the following code Nautilus don't open on the method factorial : http://ramix.org/pharo/UpdatePBE/Nautilus.png I am running Pharo version 8.0. under a 64 bits Linux machine. -- Thanks for your help Rene Paul Mages ( GnuPG_key 0x9840A6F7 ) http://www.pharo.fr http://www.linux-azur.org/ramix http://twitter.com/RenePaulMages